CN114873855A - Integrated device for treating wastewater containing prednisone - Google Patents

Integrated device for treating wastewater containing prednisone Download PDF

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Publication number
CN114873855A
CN114873855A CN202210528131.1A CN202210528131A CN114873855A CN 114873855 A CN114873855 A CN 114873855A CN 202210528131 A CN202210528131 A CN 202210528131A CN 114873855 A CN114873855 A CN 114873855A
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chamber
photocatalytic
anoxic
wastewater
prednisone
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Chinese (zh)
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杨彦郅
万玉山
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Changzhou University
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Changzhou University
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/24—Treatment of water, waste water, or sewage by flotation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5281—Installations for water purification using chemical agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F2001/007—Processes including a sedimentation step
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/34—Organic compounds containing oxygen
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00—Use of specific compounds during water treatment
    • C02F2305/10—Photocatalysts
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/28—Anaerobic digestion processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/30—Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy

Abstract

The invention belongs to the technical field of wastewater treatment, and particularly relates to an integrated device for treating wastewater containing prednisone, which comprises an air flotation chamber, a coagulation chamber, a precipitation chamber, a regulating chamber, a photocatalytic reaction chamber, an anoxic chamber, an oxidation chamber and a filter chamber which are sequentially communicated, wherein the photocatalytic reaction chamber is positioned on the right side of the regulating chamber and comprises a photocatalytic supplementary light source and a photocatalytic channel, and the photocatalytic reaction chamber inclines rightwards from top to bottom; the invention makes the waste water first pass the air flotation chamber to remove the suspended matter in it, then pass the coagulating chamber to produce the precipitate and discharge, then the waste water enters the modulating chamber to regulate its pH value and enters the light catalytic reaction chamber, to degrade the organic matter, then enter the anoxic chamber to take place the hydrolysis reaction, then enter the oxidizing chamber, the pollutant in the water is further oxidized and decomposed, discharge it through filtering finally, the device simple in construction is compact, it is convenient to build and the cost is lower.

Description

Integrated device for treating wastewater containing prednisone
Technical Field
The invention belongs to the technical field of wastewater treatment, and particularly relates to an integrated device for treating wastewater containing prednisone.
Background
Prednisone is an oral glucocorticoid, which is frequently used clinically. Prednisone is commonly used to suppress the immune system and reduce inflammatory conditions such as asthma, chronic obstructive pulmonary disease, and rheumatism. This causes the prednisone to form a pseudo-persistent phenomenon that exists in water environments for a long time in trace concentrations, with a certain number of prednisones existing in both surface and underground water bodies.
The existing method for treating wastewater containing prednisone mainly comprises physicochemical treatment methods, namely coagulation, air flotation, adsorption, electrolysis, membrane separation and the like, chemical treatment methods, namely a chemical redox method, a deep oxidation technology and the like, and biochemical treatment methods, namely an aerobic biological method, an anaerobic biological method and the like, wherein the methods cannot treat the wastewater containing prednisone to reach the standard when being used singly.
Chinese patent "A method for degrading prednisone drug residue in waste water by irradiation" (application No. 201310124111.9) discloses a method for degrading prednisone drug residue in waste water by irradiation, which comprises: the wastewater solution containing prednisone pollutants is subjected to irradiation treatment by using an electron beam accelerator irradiation technology with a certain dose, and the irradiation decomposes the prednisone in the wastewater solution. The method can quickly and effectively degrade prednisone in the wastewater through low-dose irradiation, so that the concentration of the prednisone in the wastewater reaches the safe discharge standard. However, the method has high cost and low radiation utilization rate, and the problem of waste source treatment needs to be supplemented and considered regularly.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to solve the problems that the cost of treating the wastewater containing the prednisone is high, the radiation utilization rate is low, and the wastewater source treatment needs to be supplemented and considered regularly in the prior art, an integrated device for treating the wastewater containing the prednisone is provided.
In order to solve the technical problems, the invention adopts the following technical scheme: an integrated device for treating wastewater containing prednisone comprises an air flotation chamber, a coagulation chamber, a precipitation chamber, a regulation chamber, a photocatalytic reaction chamber, an anoxic chamber, an oxidation chamber and a filter chamber which are sequentially communicated;
the air flotation chamber is used for removing suspended matters in the wastewater;
the coagulation chamber is positioned below the air flotation chamber and is used for coagulating the wastewater entering from the air flotation chamber;
the settling chamber is positioned below the coagulation chamber and is used for settling the wastewater entering from the coagulation chamber;
the adjusting chamber is positioned above the side of the settling chamber and is used for adjusting the pH value of the wastewater overflowing from the settling chamber;
the photocatalytic reaction chamber is positioned on the right side of the regulating chamber and comprises a photocatalytic supplementary light source and a photocatalytic channel, the photocatalytic reaction chamber inclines from top to bottom to the right, natural light is emitted from the right side, and when the natural light is insufficient, the supplementary light source is emitted from the left side to enable overflowing entering wastewater to perform photocatalytic reaction;
the anoxic chamber is positioned below the photocatalytic reaction chamber and is used for hydrolyzing wastewater entering from the photocatalytic reaction chamber;
the oxidation chamber is positioned on the side of the anoxic chamber and is used for aerating the wastewater overflowing from the anoxic chamber;
the filter chamber is positioned at the side of the oxidation chamber and used for filtering the wastewater overflowing from the oxidation chamber and entering the oxidation chamber and then discharging the wastewater.
Above-mentioned technical scheme makes waste water remove the suspended solid in it through the air supporting chamber at first, then produces the precipitate discharge through coagulating chamber, and waste water gets into the regulation room and gets into the light catalytic reaction room after adjusting its pH value, comes to degrade the organic matter, then gets into the oxygen deficiency room and takes place the hydrolysis reaction, then gets into the oxidation chamber, and the pollutant of aquatic is further oxidative decomposition, discharges it through filtering at last, and the device simple structure is compact, builds convenient and the cost is lower.
Further, the air flotation chamber middle part is equipped with the inlet tube, and the bottom is provided with the aeration pipe, the inlet tube afterbody is equipped with the water distributor, the delivery port level on the water distributor arranges the water distribution uniformity, the water distributor is located the top of aeration pipe, and the aeration pipe is connected with outside aeration blower, and air flotation chamber upper portion is equipped with row's sediment equipment, arrange sediment equipment including scraping sediment machine and slag chute, the aeration pipe can set to chinese character feng shape or cross shape, the water distributor sets to the same shape with the aeration pipe, the aeration pipe can be for evenly being provided with micropore diaphragm formula micropore aerator.
Furthermore, a coagulation chamber dosing pump and a coagulation chamber reagent mixer are arranged in the coagulation chamber, a coagulant is added into the coagulation chamber dosing pump, and the coagulation chamber reagent mixer is used for stirring and mixing.
Further, be equipped with first fender between coagulating basin and the drip chamber and flow the board, first fender flows the board right-hand member fixed, leaves the breach between left end and the drip chamber lateral wall rather than being relative, and first fender flows the board from the right side left side down slope 45 degrees, the drip chamber bottom is the toper and installs the drip chamber discharge valve, and waste water enters into the drip chamber of below through the breach under the effect of gravity, sinks the drip chamber bottom through the precipitate that the coagulation produced, discharges through the drip chamber discharge valve of bottom.
Furthermore, a second flow baffle plate which is horizontally arranged is arranged between the settling chamber and the adjusting chamber, a pH value measuring and controlling device, an adjusting chamber medicament mixer and an acid-alkali solution metering and adding device are arranged inside the adjusting chamber, the pH value measuring and controlling device measures the pH value of the wastewater, the acid-alkali solution metering and adding device adds chemical reagents to adjust the pH value of the wastewater, and the adjusting chamber medicament mixer fully mixes the wastewater and the reagents.
Further, the photocatalytic reaction chamber is communicated with the top of the regulating chamber, the photocatalytic reaction chamber comprises a photocatalytic supplementary light source and a photocatalytic channel, and wastewater flows along the photocatalytic channel;
the photocatalysis supplementary light source is located between photocatalysis passageway and the surge chamber, the photocatalysis supplementary light source includes shell, light source and light sense component, the shell material is organic glass, and the light source is located inside the shell, light source one end is passed through the wire and is linked to each other with the light sense component, and the other end passes through the wire and links to each other with the battery, and when the light sense component discovery natural light was not enough, the battery powered, the luminous energy that provides for the photocatalysis of light source.
The photocatalysis channel comprises a plurality of horizontally arranged bottom plates and baffle plates vertically fixed on the bottom plates, the bottom plates are distributed up and down, two adjacent bottom plates are respectively fixed on two opposite side walls of the photocatalysis reaction chamber, a gap is reserved between the free end of each bottom plate and the other side wall, the free end of each bottom plate is provided with an inclined guide plate, two adjacent baffle plates are respectively fixed on the two adjacent bottom plates, a gap is reserved between the free end of each baffle plate and the other bottom plate, grooves are formed in the bottom plates and the baffle plates, photocatalysts are laid in the grooves, and the bottom plates, the baffle plates and the guide plates are made of organic glass.
Further, the photocatalyst is Fe 3 O 4 /TiO 2 MIL-101(Fe), the preparation steps are as follows:
the method comprises the following steps: TiO 2 2 Synthesis of MIL-101 (Fe): 4mmol of FeCl 3 ·6H 2 O、4mmol·TiO 2 4mmol of phthalic acid and 1ml of acetic acid are stirred in 80ml of dimethylformamide for 2 h. The mixture was then poured into a 100ml teflon lined steel autoclave, heated at 110 ℃ for 20h, cooled naturally, the autoclave solution was filtered, the solid was washed 5 times with hot DMF and methanol and finally dried in vacuo at 60 ℃ for 12 h.
Step two Fe 3 O 4 /TiO 2 Synthesis of MIL-101 (Fe): 0.541g FeCl 3 ·6H 2 O, 0.199g FeCl 2 ·4H 2 O, 0.5g TiO 2 MIL-101(Fe) was mixed well with 30mL of distilled water and stirred at room temperature for 1 h. Then 20 ml of 25% strength aqueous ammonia solution are added and stirring is continued at 80 ℃ for 2 h. The solid was filtered and washed 3 to 5 times with distilled water and absolute ethanol until the pH was neutral and finally dried in vacuo at 60 ℃ for 24 h.
Further, the oxygen deficiency room roof inclines upwards from left to right, and the right-hand member top is equipped with the gas collecting pipe, the inside oxygen deficiency room agitator that is equipped with of oxygen deficiency room, the bottom of oxygen deficiency room is the toper and installs oxygen deficiency room discharge valve, and waste water takes place hydrolysis in the oxygen deficiency room, and gases such as methane of production are collected by the gas collecting pipe.
Furthermore, an oxidation chamber baffle plate is arranged between the oxidation chamber and the anoxic chamber, an ozone aeration pipe is arranged at the bottom of the oxidation chamber, a diaphragm type microporous aerator in the oxidation chamber performs ozone aeration on sewage, a steel frame is arranged in the middle of the oxidation chamber, an active carbon suspension is suspended on the steel frame and used as a catalyst to strengthen the ozone aeration, pollutants in water are further oxidized and decomposed to generate carbon dioxide and water, and an ozone gas collecting pipe is arranged at the top of the oxidation chamber.
Further, be equipped with the baffle between oxidation chamber and the filter chamber, the filter chamber top is equipped with the upper cover that can open, and upper portion is equipped with ultrasonic wave liquid level meter, be provided with the filter frame of placing the filter material in the middle of the filter chamber, the filter chamber bottom just installs the filter chamber discharge valve for the toper, finds the water level too high when the filter speed is low excessively when ultrasonic wave liquid level meter, and accessible bottom filter chamber discharge valve carries out the filter material after discharging water and washs or with trading.
The invention has the beneficial effects that: the invention makes the waste water first pass the air flotation chamber to remove the suspended matter in it, then pass the coagulating chamber to produce the precipitate and discharge, then the waste water enters the modulating chamber to regulate its pH value and enters the light catalytic reaction chamber, to degrade the organic matter, then enter the anoxic chamber to take place the hydrolysis reaction, then enter the oxidizing chamber, the pollutant in the water is further oxidized and decomposed, discharge it through filtering finally, the device simple in construction is compact, it is convenient to build and the cost is lower.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a photocatalytic channel;
FIG. 3 is a schematic view of a photocatalytic supplemental light source;
in the figure:
1. the device comprises an air flotation chamber, 1-1 parts of a water inlet pipe, 1-2 parts of an aeration pipe, 1-3 parts of a water distribution pipe, 1-4 parts of a slag scraper and 1-5 parts of a slag discharge groove;
2. a coagulation chamber, 2-1. a coagulation chamber medicament mixer;
3. a settling chamber, 3-1, a first flow baffle, 3-2, a settling chamber discharge valve;
4. a regulating chamber, 4-1, a second flow baffle, 4-2, a regulating chamber medicament mixer;
5. 5-1 of a photocatalytic reaction chamber, 5-1 of a photocatalytic supplementary light source, 5-1-1 of a shell, 5-1-2 of a light source, 5-1-3 of a light sensing element, 5-2 of a photocatalytic channel, 5-2-1 of a bottom plate, 5-2-2 of a baffle plate, and 5-2-3 of a guide plate;
6. an anoxic chamber, 6-1, a gas collecting pipe, 6-2, an anoxic chamber stirrer and 6-3, an anoxic chamber discharge valve;
7, an oxidation chamber, 7-1, an oxidation chamber baffle plate, 7-2, an ozone aeration pipe, 7-3, a steel frame, 7-4, an activated carbon suspension material and 7-5, an ozone gas collecting pipe;
8. the device comprises a filter chamber, 8-1 parts of a partition plate, 8-2 parts of an upper cover, 8-3 parts of an ultrasonic liquid level meter, 8-4 parts of filter materials, 8-5 parts of a filter material frame, 8-6 parts of a filter chamber discharge valve and 8-7 parts of a water outlet pipe.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams illustrating the basic structure of the present invention only in a schematic manner, and thus show only the constitution related to the present invention, and directions and references (e.g., upper, lower, left, right, etc.) may be used only to help the description of the features in the drawings. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.
The first embodiment is as follows:
as shown in fig. 1-3, the invention is an integrated device for treating wastewater containing prednisone, comprising an air flotation chamber 1, a coagulation chamber 2, a precipitation chamber 3, a regulation chamber 4, a photocatalytic reaction chamber 5, an anoxic chamber 6, an oxidation chamber 7 and a filter chamber 8 which are communicated in sequence;
the air flotation chamber 1 is used for removing suspended matters in wastewater, the middle part of the air flotation chamber 1 is provided with a water inlet pipe 1-1, the bottom part is provided with an aeration pipe 1-2, the tail part of the water inlet pipe 1-1 is provided with a water distribution pipe 1-3, the water outlets on the water distribution pipe 1-3 are horizontally arranged for uniformly distributing water, the water distribution pipe 1-3 is positioned above the aeration pipe 1-2, the aeration pipe 1-2 is connected with an external aeration blower, the upper part of the air flotation chamber 1 is provided with a slag discharge device, the slag discharging equipment comprises a slag scraper 1-4 and a slag discharging groove 1-5, the aeration pipe 1-2 can be arranged in a Chinese character feng shape or a cross shape, the water distribution pipe 1-3 is set to be the same as the aeration pipe 1-2, and the aeration pipe 1-2 can be a diaphragm type microporous aerator with micropores uniformly arranged.
The coagulation chamber 2 is located below the air flotation chamber 1 and is used for coagulating wastewater entering from the air flotation chamber 1, a coagulation chamber dosing pump and a coagulation chamber reagent mixer 2-1 are arranged in the coagulation chamber 2, a coagulant is added into the coagulation chamber dosing pump, and the coagulation chamber reagent mixer 2-1 is used for stirring and mixing.
The settling chamber 3 is positioned below the coagulating chamber 2 and used for settling wastewater entering from the coagulating chamber 2, a first flow baffle plate 3-1 is arranged between the coagulating chamber 2 and the settling chamber 3, the right end of the first flow baffle plate 3-1 is fixed, a gap is reserved between the left end and the side wall of the settling chamber 3 opposite to the left end, the first flow baffle plate 3-1 inclines downwards at 45 degrees from right to left, the bottom of the settling chamber 3 is conical and is provided with a settling chamber discharge valve 3-2, the wastewater enters the settling chamber 3 below through the gap under the action of gravity, precipitates generated by coagulation sink to the bottom of the settling chamber 3 and are discharged through the settling chamber discharge valve 3-2 at the bottom.
The adjusting chamber 4 is located above the side of the settling chamber 3 and used for adjusting the pH value of wastewater overflowing from the settling chamber 3, a second baffle plate 4-1 horizontally arranged is arranged between the settling chamber 3 and the adjusting chamber 4, a pH value measuring and controlling device, an adjusting chamber medicament mixer 4-2 and an acid and alkali liquor metering and adding device are arranged inside the adjusting chamber 4, the pH value measuring and controlling device measures the pH value of the wastewater, the acid and alkali liquor metering and adding device adds chemical reagents to adjust the pH value of the wastewater, and the adjusting chamber medicament mixer 4-2 fully mixes the wastewater and the reagents.
The photocatalytic reaction chamber 5 is positioned on the right side of the adjusting chamber 4 and comprises a photocatalytic supplementary light source 5-1 and a photocatalytic channel 5-2, the photocatalytic reaction chamber 5 inclines from top to bottom to the right, natural light enters from the right side, and when natural light is insufficient, the supplementary light source 5-1-2 enters from the left side to enable overflowing entering wastewater to perform photocatalytic reaction;
the photocatalytic reaction chamber 5 is communicated with the top of the regulating chamber 4, the photocatalytic reaction chamber 5 comprises a photocatalytic supplementary light source 5-1 and a photocatalytic channel 5-2, and wastewater flows along the photocatalytic channel 5-2;
the photocatalysis supplementary light source 5-1 is positioned between the photocatalysis channel 5-2 and the adjusting chamber 4, the photocatalysis supplementary light source 5-1 comprises a shell 5-1-1, a light source 5-1-2 and a light sensing element 5-1-3, the shell 5-1-1 is made of organic glass, the light source 5-1-2 is positioned inside the shell 5-1-1, one end of the light source 5-1-2 is connected with the light sensing element 5-1-3 through a lead, the other end of the light source is connected with a storage battery through a lead, when the light sensing element 5-1-3 finds that natural light is insufficient, the storage battery supplies power, and the light source 5-1-2 emits light to provide energy for photocatalysis reaction.
The photocatalytic channel 5-2 comprises a plurality of horizontally arranged bottom plates 5-2-1 and baffle plates 5-2-2 vertically fixed on the bottom plates 5-2-1, the bottom plates 5-2-1 are distributed up and down, two adjacent bottom plates 5-2-1 are respectively fixed on two opposite side walls of the photocatalytic reaction chamber 5, a gap is reserved between the free end of the bottom plate 5-2-1 and the other side wall, an inclined baffle plate 5-2-3 is arranged at the free end of the bottom plate 5-2-1, two adjacent baffle plates 5-2-2 are respectively fixed on two adjacent bottom plates 5-2-1, a gap is reserved between the free end of the baffle plate 5-2-2 and the other bottom plate 5-2-1, grooves are formed in the bottom plate 5-2-1 and the baffle plate 5-2-2, a photocatalyst is laid in the grooves, and the bottom plate 5-2-1, the baffle plate 5-2-2 and the baffle plate 5-2-3 are all made of organic glass.
The photocatalyst is Fe 3 O 4 /TiO 2 MIL-101(Fe), the preparation steps are as follows:
the method comprises the following steps: TiO 2 2 Synthesis of MIL-101 (Fe): 4mmol of FeCl 3 ·6H 2 O、4mmol·TiO 2 4mmol of phthalic acid and 1ml of acetic acid are stirred in 80ml of dimethylformamide for 2 h. The mixture was then poured into a 100ml teflon lined steel autoclave, heated at 110 ℃ for 20h, cooled naturally, the autoclave solution was filtered, the solid was washed 5 times with hot DMF and methanol and finally dried in vacuo at 60 ℃ for 12 h.
Step two Fe 3 O 4 /TiO 2 Synthesis of MIL-101 (Fe): 0.541g FeCl 3 ·6H 2 O, 0.199g FeCl 2 ·4H 2 O, 0.5g TiO 2 MIL-101(Fe) was mixed well with 30mL of distilled water and stirred at room temperature for 1 h. Then 20 ml of 25% strength aqueous ammonia solution are added and stirring is continued at 80 ℃ for 2 h. The solid was filtered and washed 3 to 5 times with distilled water and absolute ethanol until the pH was neutral and finally dried in vacuo at 60 ℃ for 24 h.
The anoxic chamber 6 is positioned below the photocatalytic reaction chamber 5 and is used for hydrolyzing wastewater entering from the photocatalytic reaction chamber 5; the top plate of the anoxic chamber 6 inclines upwards from left to right, the top of the right end of the anoxic chamber is provided with a gas collecting pipe 6-1, an anoxic chamber stirrer 6-2 is arranged inside the anoxic chamber 6, the bottom of the anoxic chamber 6 is conical and is provided with an anoxic chamber discharge valve 6-3, hydrolysis reaction of wastewater occurs in the anoxic chamber 6, and generated methane and other gases are collected by the gas collecting pipe 6-1.
The oxidation chamber 7 is positioned on the side of the anoxic chamber 6 and is used for aerating the wastewater overflowing from the anoxic chamber 6; an oxidation chamber baffle plate 7-1 is arranged between the oxidation chamber 7 and the anoxic chamber 6, an ozone aeration pipe 7-2 is arranged at the bottom of the oxidation chamber 7, a diaphragm type microporous aerator in the oxidation chamber 7 performs ozone aeration on sewage, a steel frame 7-3 is arranged in the middle of the oxidation chamber 7, an active carbon suspension 7-4 is suspended on the steel frame 7-3, the active carbon suspension 7-4 serves as a catalyst to enhance ozone aeration, pollutants in water are further oxidized and decomposed to generate carbon dioxide and water, and an ozone gas collecting pipe 7-5 is arranged at the top of the oxidation chamber 7.
The filter chamber 8 is located the oxidation chamber 7 side for discharge after filtering the waste water that overflows from oxidation chamber 7 and gets into, be equipped with baffle 8-1 between oxidation chamber 7 and the filter chamber 8, the filter chamber 8 top is equipped with openable upper cover 8-2, and upper portion is equipped with ultrasonic wave liquid level appearance 8-3, be provided with the filter material frame 8-5 of placing filter material 8-4 in the middle of the filter chamber 8, the filter chamber 8 bottom is the toper and installs filter chamber discharge valve 8-6, when ultrasonic wave liquid level appearance 8-3 finds the water level too high, and the filter speed is too low, carries out filter material 8-4 after 8-6 discharges the water and washs or changes through bottom filter chamber discharge valve.
The working principle and the using process of the invention are as follows:
firstly, wastewater reaches a water distribution pipe 1-3 through a water inlet pipe 1-1 and is uniformly distributed in an air flotation chamber 1, and an aeration pipe 1-2 at the bottom of the air flotation chamber 1 generates a large amount of micro bubbles under the action of an aeration blower, so that suspended matters in the wastewater are adsorbed on the bubbles and float up to the surface of a water body along with the bubbles, and are discharged through a slag scraper 1-4 and a slag discharge groove 1-5.
Secondly, the air floatation wastewater enters a coagulation chamber 2, a coagulant is added into the coagulation chamber 2 through a dosing pump, and a reagent mixer 2-1 in the coagulation chamber is stirred and mixed; then the wastewater enters a lower settling chamber 3 through a first flow baffle 3-1 under the action of gravity, precipitates generated by coagulation sink to the bottom of the settling chamber 3, and the precipitates are discharged through a discharge valve 3-2 of the settling chamber at the bottom.
The supernatant of the settling chamber 3 enters the adjusting chamber 4 through a second flow baffle 4-1, the pH value measuring and controlling device measures the pH value of the wastewater, the acid and alkali liquor metering and adding device adds chemical reagents to adjust the pH value of the wastewater, and the adjusting chamber reagent mixer 4-2 fully mixes the wastewater and the reagents.
Fourthly, the wastewater enters the photocatalytic reaction chamber 5 and flows along the photocatalytic channel 5-2, the photocatalyst on the bottom plate 5-2-1 and the baffle plate 5-2-2 degrades organic matters in the wastewater under the irradiation of natural light, when the light sensing element 5-1-3 finds that the natural light is insufficient, the storage battery supplies power, and the light source 5-1-2 emits light to provide energy for the photocatalytic reaction.
Fifthly, the wastewater enters the anoxic chamber 6, hydrolysis reaction occurs in the anoxic chamber 6, and generated methane and other gases are collected by the gas collecting pipe 6-1.
Sixthly, the wastewater enters the oxidation chamber 7 through the baffle plate 7-1 of the oxidation chamber, the membrane type microporous aerator in the oxidation chamber 7 performs ozone aeration on the wastewater, the activated carbon suspension 7-4 is used as a catalyst to enhance the ozone aeration, and pollutants in the water are further oxidized and decomposed to generate carbon dioxide and water.
And the wastewater enters the filter chamber 8 through the partition plate 8-1, is filtered by the filter material 8-4 and then is discharged from the water outlet pipe 8-7 of the filter chamber 8, and is discharged or recycled after reaching the standard, and when the ultrasonic liquid level meter 8-3 finds that the water level is too high, namely the filtering speed is too low, the filter material 8-4 is cleaned or replaced after being discharged through the discharge valve 8-6 of the bottom filter chamber.
In light of the foregoing description of the preferred embodiment of the present invention, it is to be understood that numerous changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (10)

1. The utility model provides an integrated device of waste water of processing contains prednisone which characterized in that: comprises an air flotation chamber (1), a coagulation chamber (2), a precipitation chamber (3), a regulation chamber (4), a photocatalytic reaction chamber (5), an anoxic chamber (6), an oxidation chamber (7) and a filter chamber (8) which are communicated in sequence;
the air flotation chamber (1) is used for removing suspended matters in the wastewater;
the coagulation chamber (2) is positioned below the air flotation chamber (1) and is used for coagulating wastewater entering from the air flotation chamber (1);
the settling chamber (3) is positioned below the coagulating chamber (2) and is used for settling wastewater entering from the coagulating chamber (2);
the adjusting chamber (4) is positioned above the side of the settling chamber (3) and is used for adjusting the pH value of wastewater overflowing from the settling chamber (3);
the photocatalytic reaction chamber (5) is positioned on the right side of the regulating chamber (4) and comprises a photocatalytic supplementary light source (5-1) and a photocatalytic channel (5-2), and the photocatalytic reaction chamber (5) inclines rightwards from top to bottom and is used for enabling wastewater overflowing from the regulating chamber (4) to enter to perform photocatalytic reaction;
the anoxic chamber (6) is positioned below the photocatalytic reaction chamber (5) and is used for hydrolyzing wastewater entering from the photocatalytic reaction chamber (5);
the oxidation chamber (7) is positioned on the side of the anoxic chamber (6) and is used for aerating the wastewater overflowing from the anoxic chamber (6) and entering the anoxic chamber;
the filter chamber (8) is positioned at the side of the oxidation chamber (7) and is used for filtering the wastewater overflowing from the oxidation chamber (7) and then discharging the wastewater.
2. An integrated apparatus for treating prednisone-containing waste water according to claim 1, wherein: the water distribution device is characterized in that a water inlet pipe (1-1) is arranged in the middle of the air flotation chamber (1), an aeration pipe (1-2) is arranged at the bottom of the air flotation chamber, a water distribution pipe (1-3) is arranged at the tail of the water inlet pipe (1-1), the water distribution pipe (1-3) is located above the aeration pipe (1-2), and a slag discharging device is arranged at the upper part of the air flotation chamber (1) and comprises a slag scraping machine (1-4) and a slag discharging groove (1-5).
3. An integrated apparatus for treating prednisone-containing waste water according to claim 1, wherein: a coagulation chamber dosing pump and a coagulation chamber medicament mixer (2-1) are arranged in the coagulation chamber (2).
4. An integrated apparatus for treating prednisone-containing waste water according to claim 1, wherein: be equipped with first fender between thoughtlessly congeal room (2) and drip chamber (3) and flow board (3-1), first fender is flowed the board (3-1) right-hand member and is fixed, leaves the breach between left end and relative drip chamber (3) lateral wall, and first fender is flowed board (3-1) from the right side to the left downward slope, drip chamber (3) bottom is the toper and installs drip chamber drain valve (3-2).
5. An integrated apparatus for treating prednisone-containing waste water according to claim 1, wherein: a second flow baffle (4-1) which is horizontally arranged is arranged between the settling chamber (3) and the adjusting chamber (4), and a pH value measuring and controlling device, an adjusting chamber medicament mixer (4-2) and an acid-alkali liquor metering and adding device are arranged in the adjusting chamber (4).
6. An integrated apparatus for treating prednisone-containing waste water according to claim 1, wherein: the photocatalytic reaction chamber (5) is communicated with the top of the regulating chamber (4);
the photocatalytic supplementary light source (5-1) is positioned between the photocatalytic channel (5-2) and the adjusting chamber (4), the photocatalytic supplementary light source (5-1) comprises a shell (5-1-1), a light source (5-1-2) and a light sensing element (5-1-3), the shell (5-1-1) is made of organic glass, and the light source (5-1-2) is positioned inside the shell (5-1-1);
the photocatalytic channel (5-2) comprises a plurality of horizontally arranged bottom plates (5-2-1) and baffle plates (5-2-2) vertically fixed on the bottom plates (5-2-1), the bottom plates (5-2-1) are distributed up and down, two adjacent bottom plates (5-2-1) are respectively fixed on two opposite side walls of the photocatalytic reaction chamber (5), a gap is reserved between the free end of the bottom plate (5-2-1) and the other side wall, the free end of the bottom plate (5-2-1) is provided with an inclined baffle plate (5-2-3), two adjacent baffle plates (5-2-2) are respectively fixed on two adjacent bottom plates (5-2-1), and a gap is reserved between the free end of the baffle plate (5-2-2) and the other bottom plate (5-2-1), grooves are formed in the bottom plate (5-2-1) and the baffle plate (5-2-2), a photocatalyst is laid in the grooves, and the bottom plate (5-2-1), the baffle plate (5-2-2) and the baffle plate (5-2-3) are all made of organic glass.
7. An integrated apparatus for treating prednisone-containing waste water according to claim 6, wherein: the photocatalyst is Fe 3 O 4 /TiO 2 MIL-101(Fe), the preparation steps are as follows:
the method comprises the following steps: TiO 2 2 Synthesis of MIL-101 (Fe): 4mmol of FeCl 3 ·6H 2 O、4mmol·TiO 2 4mmol of phthalic acid and 1ml of acetic acid are put into 80ml of dimethylformamide and stirred for 2h, then the mixture is poured into 100ml of teflon-lined steel autoclave, heated for 20h at 110 ℃, after natural cooling, the autoclave solution is filtered, the solid is washed for 5 times by hot DMF and methanol, and finally dried for 12h in vacuum at 60 ℃;
step two Fe 3 O 4 /TiO 2 Synthesis of MIL-101 (Fe): 0.541g FeCl 3 ·6H 2 O, 0.199g FeCl 2 ·4H 2 O, 0.5g TiO 2 MIL-101(Fe) was mixed well with 30mL of distilled water and stirred at room temperature for 1h, then 20 mL of 25% aqueous ammonia was added, stirring was continued at 80 ℃ for 2h, the solid was filtered and washed with distilled water and absolute ethanol 3 to 5 times until the pH was neutral, and finally dried at 60 ℃ under vacuum for 24 h.
8. An integrated apparatus for treating prednisone-containing waste water according to claim 1, wherein: the top plate of the anoxic chamber (6) inclines upwards from left to right, the top of the right end of the anoxic chamber is provided with a gas collecting pipe (6-1), an anoxic chamber stirrer (6-2) is arranged inside the anoxic chamber (6), and the bottom of the anoxic chamber (6) is conical and is provided with an anoxic chamber discharge valve (6-3).
9. An integrated apparatus for treating prednisone-containing waste water according to claim 1, wherein: an oxidation chamber baffle plate (7-1) is arranged between the oxidation chamber (7) and the anoxic chamber (6), an ozone aeration pipe (7-2) is arranged at the bottom of the oxidation chamber (7), a steel frame (7-3) is arranged in the middle of the oxidation chamber (7), an activated carbon suspension material (7-4) is suspended on the steel frame (7-3), and an ozone gas collecting pipe (7-5) is arranged at the top of the oxidation chamber (7).
10. An integrated apparatus for treating prednisone-containing waste water according to claim 1, wherein: a partition plate (8-1) is arranged between the oxidation chamber (7) and the filtering chamber (8), an openable upper cover (8-2) is arranged at the top of the filtering chamber (8), an ultrasonic liquid level meter (8-3) is arranged at the upper part of the filtering chamber (8), a filtering material frame (8-5) for placing filtering materials (8-4) is arranged in the filtering chamber (8), and the bottom of the filtering chamber (8) is conical and is provided with a filtering chamber discharge valve (8-6).
CN202210528131.1A 2022-05-16 2022-05-16 Integrated device for treating wastewater containing prednisone Pending CN114873855A (en)

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Application publication date: 20220809